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Diffstat (limited to 'spec/ruby/core/module/constants_spec.rb')
-rw-r--r-- | spec/ruby/core/module/constants_spec.rb | 91 |
1 files changed, 91 insertions, 0 deletions
diff --git a/spec/ruby/core/module/constants_spec.rb b/spec/ruby/core/module/constants_spec.rb new file mode 100644 index 0000000000..c331482bfb --- /dev/null +++ b/spec/ruby/core/module/constants_spec.rb @@ -0,0 +1,91 @@ +require File.expand_path('../../../spec_helper', __FILE__) +require File.expand_path('../../../fixtures/constants', __FILE__) +require File.expand_path('../fixtures/classes', __FILE__) + +describe "Module.constants" do + it "returns an array of the names of all toplevel constants" do + count = Module.constants.size + module ConstantSpecsAdded + end + Module.constants.size.should == count + 1 + Object.send(:remove_const, :ConstantSpecsAdded) + end + + it "returns an array of Symbol names" do + # This in NOT an exhaustive list + Module.constants.should include(:Array, :Bignum, :Class, :Comparable, :Dir, + :Enumerable, :ENV, :Exception, :FalseClass, + :File, :Fixnum, :Float, :Hash, :Integer, :IO, + :Kernel, :Math, :Method, :Module, :NilClass, + :Numeric, :Object, :Range, :Regexp, :String, + :Symbol, :Thread, :Time, :TrueClass) + end + + it "returns Module's constants when given a parameter" do + direct = Module.constants(false) + indirect = Module.constants(true) + module ConstantSpecsIncludedModule + MODULE_CONSTANTS_SPECS_INDIRECT = :foo + end + + class Module + MODULE_CONSTANTS_SPECS_DIRECT = :bar + include ConstantSpecsIncludedModule + end + (Module.constants(false) - direct).should == [:MODULE_CONSTANTS_SPECS_DIRECT] + (Module.constants(true) - indirect).sort.should == [:MODULE_CONSTANTS_SPECS_DIRECT, :MODULE_CONSTANTS_SPECS_INDIRECT] + + Module.send(:remove_const, :MODULE_CONSTANTS_SPECS_DIRECT) + ConstantSpecsIncludedModule.send(:remove_const, :MODULE_CONSTANTS_SPECS_INDIRECT) + end +end + +describe "Module#constants" do + it "returns an array of Symbol names of all constants defined in the module and all included modules" do + ConstantSpecs::ContainerA.constants.sort.should == [ + :CS_CONST10, :CS_CONST23, :CS_CONST24, :CS_CONST5, :ChildA + ] + end + + it "returns all constants including inherited when passed true" do + ConstantSpecs::ContainerA.constants(true).sort.should == [ + :CS_CONST10, :CS_CONST23, :CS_CONST24, :CS_CONST5, :ChildA + ] + end + + it "returns all constants including inherited when passed some object" do + ConstantSpecs::ContainerA.constants(Object.new).sort.should == [ + :CS_CONST10, :CS_CONST23, :CS_CONST24, :CS_CONST5, :ChildA + ] + end + + it "doesn't returns inherited constants when passed false" do + ConstantSpecs::ContainerA.constants(false).sort.should == [ + :CS_CONST10, :CS_CONST23, :CS_CONST5, :ChildA + ] + end + + it "doesn't returns inherited constants when passed nil" do + ConstantSpecs::ContainerA.constants(nil).sort.should == [ + :CS_CONST10, :CS_CONST23, :CS_CONST5, :ChildA + ] + end + + it "returns only public constants" do + ModuleSpecs::PrivConstModule.constants.should == [:PUBLIC_CONSTANT] + end +end + +describe "Module#constants" do + before :each do + ConstantSpecs::ModuleM::CS_CONST251 = :const251 + end + + after :each do + ConstantSpecs::ModuleM.send(:remove_const, :CS_CONST251) + end + + it "includes names of constants defined after a module is included" do + ConstantSpecs::ContainerA.constants.should include(:CS_CONST251) + end +end |